Many paths to COVID-19 lymphocyte dysfunction.
Many paths to COVID-19 lymphocyte dysfunction.
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导致 COVID-19 淋巴细胞功能障碍的途径有很多。
DOI:
10.1038/s41577-020-0361-y
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Hegde,Samarth
中科院分区:
文献类型:
--
作者:
Hegde,Samarth
In this preprint, Zhang et al. elucidate a potential immune evasion strategy involving the SARS-CoV-2 ORF8 protein. They show that expression of ORF8, which directly binds to MHC class I molecules, downregulates their surface expression on HEK293T cells. ORF8 co-localizes with MHC class I molecules in lysosomes, thereby disrupting antigen presentation. When healthy human donor-derived cytotoxic T lymphocytes (CTLs) sensitized to the SARS-CoV-2 epitope SSp-1 were exposed to autologous dendritic cells pre-pulsed with SSp-1, there was reduced killing of ORF8-expressing HEK293T cells compared with ORF8 non-expressing cells. These results were replicated using CTLs isolated from a patient recovering from COVID-19 that responded to a mixture of SARS-CoV-2 N and S proteins. This potential mechanism for SARS-CoV-2 evasion of host immune surveillance warrants further investigation.
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DOI:
10.21608/zumj.2021.95398.2345
发表时间:
2021
期刊:
Zagazig University Medical Journal
影响因子:
--
作者:
Nearmeen M. Rashad;Walid Ashour;M. Hussien;Amira M. El;Haitham Mohamed;M. Sherif
通讯作者:
M. Sherif
影响因子:
4.4
作者:
Mahmoud Sayed Ahmed Shahin;M. Melake;S. Ibrahim;Amira Mohiey El
通讯作者:
Amira Mohiey El
影响因子:
7.5
作者:
Klok, F. A.;Kruip, M. J. H. A.;Endeman, H.
通讯作者:
Endeman, H.
影响因子:
13.6
作者:
Soung A;Klein RS
通讯作者:
Klein RS
影响因子:
4
作者:
Sharifi-Razavi, A.;Karimi, N.;Rouhani, N.
通讯作者:
Rouhani, N.